Steven Zahm1) The character encoding is handled correctly, it’s the browser that messes them up. I have a rough alpha version that skips the step after mapping I can give you.
2) Sorry, no. The mapping step needs to be generic in order to be able to handle the unknown input of the CSV file. Many of the column headers names can be auto mapped though. Do you have control over the CSV headers?
3) You could use phpMyAdmin or similar tool and empty the tables prior to import.
4) Sorry, no. I may investigate the possibility after Connections has been migrated to use the WP Media Library.
5) Yes. create a column in your CSV files named “Visibility”. Populate the column using public, private or unlisted accordingly. When importing, map the visibility column to Visibility.
6) Sure, I would recommend use the CSV Import as a base.